CVE-2022-31108

{"containers": {"cna": {"affected": [{"product": "mermaid", "vendor": "mermaid-js", "versions": [{"status": "affected", "version": ">= 8.0.0, < 9.1.3"}]}], "descriptions": [{"lang": "en", "value": "Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to \"load\" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-74", "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-06-28T18:35:10.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225"}], "source": {"advisory": "GHSA-x3vm-38hw-55wf", "discovery": "UNKNOWN"}, "title": "Arbitrary `CSS` injection into the generated graph affecting the container HTML in mermaid.js", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-31108", "STATE": "PUBLIC", "TITLE": "Arbitrary `CSS` injection into the generated graph affecting the container HTML in mermaid.js"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "mermaid", "version": {"version_data": [{"version_value": ">= 8.0.0, < 9.1.3"}]}}]}, "vendor_name": "mermaid-js"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to \"load\" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}]}, "references": {"reference_data": [{"name": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf", "refsource": "CONFIRM", "url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf"}, {"name": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225", "refsource": "MISC", "url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225"}]}, "source": {"advisory": "GHSA-x3vm-38hw-55wf", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T07:11:39.481Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-22T15:45:53.883003Z", "id": "CVE-2022-31108", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-22T17:52:58.513Z"}}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2022-31108", "datePublished": "2022-06-28T18:35:11.000Z", "dateReserved": "2022-05-18T00:00:00.000Z", "dateUpdated": "2025-04-22T17:52:58.513Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T07:11:39.481Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-31108", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-22T15:45:53.883003Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-22T15:45:55.297Z"}}], "cna": {"title": "Arbitrary `CSS` injection into the generated graph affecting the container HTML in mermaid.js", "source": {"advisory": "GHSA-x3vm-38hw-55wf", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "mermaid-js", "product": "mermaid", "versions": [{"status": "affected", "version": ">= 8.0.0, < 9.1.3"}]}], "references": [{"url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to \"load\" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-74", "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2022-06-28T18:35:10.000Z"}, "x_legacyV4Record": {"impact": {"cvss": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, "source": {"advisory": "GHSA-x3vm-38hw-55wf", "discovery": "UNKNOWN"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": ">= 8.0.0, < 9.1.3"}]}, "product_name": "mermaid"}]}, "vendor_name": "mermaid-js"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf", "name": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf", "refsource": "CONFIRM"}, {"url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225", "name": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to \"load\" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-31108", "STATE": "PUBLIC", "TITLE": "Arbitrary `CSS` injection into the generated graph affecting the container HTML in mermaid.js", "ASSIGNER": "security-advisories@github.com"}}}}, "cveMetadata": {"cveId": "CVE-2022-31108", "state": "PUBLISHED", "dateUpdated": "2025-04-22T17:52:58.513Z", "dateReserved": "2022-05-18T00:00:00.000Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2022-06-28T18:35:11.000Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "mermaid", "vendor": "mermaid-js", "versions": [{"status": "affected", "version": ">= 8.0.0, < 9.1.3"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mermaid_project:mermaid:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "FEF49D42-A81A-4D6D-A0DD-4F4E218B87BF", "versionEndExcluding": "9.1.3", "versionStartIncluding": "8.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to \"load\" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks."}, {"lang": "es", "value": "Mermaid es una herramienta de diagramaci\u00f3n y gr\u00e1ficos basada en JavaScript que usa definiciones de texto inspiradas en Markdown y un renderizador para crear y modificar diagramas complejos. Un atacante es capaz de inyectar \"CSS\" arbitrario en el gr\u00e1fico generado permiti\u00e9ndole cambiar el estilo de los elementos fuera del gr\u00e1fico generado, y potencialmente exfiltrar informaci\u00f3n confidencial usando selectores \"CSS\" especialmente dise\u00f1ados. El siguiente ejemplo muestra c\u00f3mo un atacante puede filtrar el contenido de un campo de entrada forzando el atributo \"value\" un car\u00e1cter a la vez. Siempre que haya una coincidencia real, el navegador har\u00e1 una petici\u00f3n \"http\" para \"cargar\" una imagen de fondo que permitir\u00e1 al atacante saber cu\u00e1l es el valor del car\u00e1cter. Este problema puede conllevar a una \"Divulgaci\u00f3n de informaci\u00f3n\" por medio de selectores CSS y funciones capaces de generar peticiones HTTP. Esto tambi\u00e9n permite a un atacante cambiar el documento de manera que puede llevar a un usuario a llevar a cabo acciones no deseadas, como hacer clic en un enlace, etc. Este problema ha sido resuelto en versi\u00f3n 9.1.3. Es recomendado a usuarios actualizar. Los usuarios que no puedan actualizarse deben asegurarse de que las entradas del usuario sean escapadas apropiadamente antes de insertarlas en bloques CSS"}], "id": "CVE-2022-31108", "lastModified": "2026-06-17T04:44:48.970", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-31108", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-22T15:45:53.883003Z", "version": "2.0.3"}}]}, "published": "2022-06-28T19:15:09.423", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}